$overlay{name=dyn_name, src=dyn_src, collection=dyn_collection, space=dyn_space } $prefer{ data=dict( # overlay(name, src, collection, space) dyn_name="overlay_naming_base.html", dyn_src=None, dyn_collection=None, dyn_space="positive" ) } $test{ dummy=None }#[ specify a dummy param to workaround parse error when doing an "empty" test that uses the default data ]# $test{ dyn_name="SITE-TEMPLATE", dyn_src="overlay_naming_base.html" } $test{ dyn_collection="" } $test{ dyn_collection=None } $test{ dyn_space="negative" }